Questions by Yogesh Wadhwa

Questions by Yogesh Wadhwa

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 40.0 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain?

asked Sep 1, 2019

2 answers

2 votes

43.4k views

The chart below shows the amount of coal mined in four different states of USA in the year 2005. State Amount of coal mined (in billion tons) West Virginia 37 Wyoming 68 Montana 120 Illinois 78 In which

asked Feb 20, 2019

2 answers

3 votes

22.7k views

you have a job raking leaves. You charge 10 dollars plus .50 for each bag you fill with leaves. the equation y=0.50x+10 models this situation,where x is the number of bags and y is your total amount earned.

asked Jan 25, 2019

1 answer

2 votes

59.6k views

How does Odysseus escape from Polyphemus once he had blinded the Cyclops? A.He tied him up and escaped. B.He and his men rode out of the cave on the Cyclops's sheep. C.He stabbed him through the heart

asked Nov 14, 2018

2 answers

3 votes

227k views

In an experiment, a student gently heated a hydrated copper compound to remove the water of hydration. the following data was recorded: 1. mass of the crucible, cover and contents before heating 23.4g.

asked Aug 2, 2018

1 answer

3 votes

202k views

Dolly must clean up her room before she goes out. 5. In this sentence, what word begins the subordinate clause? A. Dolly B. she C. clean D. before

asked May 23, 2018

1 answer

5 votes

18.4k views

Inflation causes money to ________ its value over time.

asked Feb 6, 2018

1 answer

2 votes

108k views

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